private void cbNgaynhap_SelectedIndexChanged(object sender, EventArgs e)
{
SachBUS objSach = new SachBUS();
if (objSach.GetNhapSach(cbNgaynhap.Text) != null)
{
dgvNhapSach.DataSource = objSach.GetNhapSach(cbNgaynhap.Text);
}
else
{
MessageBox.Show("Lỗi dữ liệu");
}
}
//lay tat ca thong tin nhap sach
void LoadData()
{
SachBUS objSach = new SachBUS();
if (objSach.GetNhapSach() != null)
{
dgvNhapSach.DataSource = objSach.GetNhapSach();
}
else
{
MessageBox.Show("Lỗi dữ liệu");
}
}
